Tools & Wizards About Us

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

ombouwboer.nl

Page Load Speed

7.9 sec in total

First Response

450 ms

Resources Loaded

7 sec

Page Rendered

472 ms

About Website

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Key Findings

We analyzed Ombouwboer.nl page load time and found that the first response time was 450 ms and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

ombouwboer.nl performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.197

63/100

15%

TTI (Time to Interactive)

Value6.1 s

63/100

10%

Network Requests Diagram

ombouwboer.nl

450 ms

reset.css

318 ms

style.css

407 ms

jquery.fancybox-1.3.4.css

518 ms

page_templates.css

549 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 96% of them (53 requests) were addressed to the original Ombouwboer.nl, 4% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (5.2 sec) belongs to the original domain Ombouwboer.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 100.0 kB (34%)

Content Size

293.1 kB

After Optimization

193.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ombouwboer.nl main page is 293.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 175.3 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 17.3 kB

  • Original 23.2 kB
  • After minification 21.8 kB
  • After compression 5.9 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 17.3 kB or 75% of the original size.

Image Optimization

-42%

Potential reduce by 73.0 kB

  • Original 175.3 kB
  • After minification 102.3 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Ombouwboer needs image optimization as it can save up to 73.0 kB or 42% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 7.3 kB

  • Original 78.6 kB
  • After minification 77.4 kB
  • After compression 71.3 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-15%

Potential reduce by 2.4 kB

  • Original 16.0 kB
  • After minification 16.0 kB
  • After compression 13.6 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Ombouwboer.nl needs all CSS files to be minified and compressed as it can save up to 2.4 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (59%)

Requests Now

54

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ombouwboer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

ombouwboer.nl accessibility score

100

Accessibility Issues

Best Practices

ombouwboer.nl best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

ombouwboer.nl SEO score

67

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ombouwboer.nl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Dutch. Our system also found out that Ombouwboer.nl main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of Ombouwboer. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: